Derby Weather Forecast

    • 53
    • 78

    Chance Rain Showers

    • 49
    • 68

    Mostly Sunny

    • 64
    • 78

    Mostly Cloudy

    • 60
    • 76

    Rain Showers Likely

    • 60
    • 78

    Rain Showers Likely

    • 55
    • 75

    Chance Rain Showers

Today 13 Sep Southern Erie

Mostly cloudy through early Afternoon, then partly sunny with a chance of Showers and Thunderstorms late. Highs in the upper 70s. Southwest Winds 5 to 10 Mph, becoming west 10 to 15 Mph. Chance of rain 40 percent.

Tonight 13 Sep Southern Erie

Mostly cloudy with a chance of Showers and Thunderstorms in the Evening, then partly cloudy overnight. Lows in the lower 50s. West Winds 5 to 10 Mph, becoming light. Chance of rain 40 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Derby Temperature Statistics

September Temperature

Dunkirk, Chautauqua County / Dunkirk Airport (19.9 miles)

  • Lowest 7 September, 2026

    48 °F

  • Average September

    70 °F

  • Highest 2 September, 2026

    88 °F

Climate (2021–2026)

Dunkirk, Chautauqua County / Dunkirk Airport (19.9 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    59.9 °F
Get WillyWeather+ to remove ads